Re: Mathematica 8

*To*: mathgroup at smc.vnet.net*Subject*: [mg114082] Re: Mathematica 8*From*: "J and B" <noslowski at comcast.net>*Date*: Tue, 23 Nov 2010 05:58:13 -0500 (EST)

Sorry to butt in, but I noticed that you have an Lenovo laptop. I am getting one, but I don't know what I need in order to run M8 on it. I will be using going version of windows on it. I had to get another desktop 3 years ago, an Lenovo just to run version 7. My IBM desktop could not handle M7. Thanks -----Original Message----- From: Curtis F. Osterhoudt [mailto:cfo at lanl.gov] Sent: Monday, November 22, 2010 7:36 AM To: mathgroup at smc.vnet.net Subject: [mg114082] [mg114047] Re: Mathematica 8 Interesting. I decided to play with this too (on a Lenovo notebook with two cores, running a 32-bit linux). If I choose to have Mathematica fire up another kernel "as needed", things run fine. However, if I ask it to start two kernels "on startup", the Benchmark runs for a long time (I haven't let it complete yet) and pegs both cores at around 100%. It also prints no output. Perhaps a bug? >> Could you elaborate a bit on this? I thought to make use of more than >> one core I needed to use commands like Parallelize. Are modifying the >> benchmarking code? > > No ... I just selected to launch parallel kernels on startup of > Mathematica 8 in Mathematica Preferences. > > Then I just ran MathematicaMark8 with no code modifications to see > what happened.